International journal of ophthalmology · 2016
Use of high-throughput targeted exome sequencing in genetic diagnosis of Chinese family with congenital cataract.
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Ma Ming-Fu, Li Lian-Bing, Pei Yun-Qi, Cheng Zhi
Аннотация
AIM: To identify disease-causing mutation in a congenital cataract family using enrichment of targeted genes combined with next-generation sequencing.
METHODS: A total of 371 known genes related to inherited eye diseases of the proband was selected and captured, followed by high-throughput sequencing. The sequencing data were analyzed by established bioinformatics pipeline. Validation was performed by Sanger sequencing.
RESULTS: A recurrent heterozygous non-synonymous mutation c.130G>A (p.V44M) in the GJA3 gene was identified in the proband. The result was confirmed by Sanger sequencing. The mutation showed co-segregation with the disease phenotype in the family but was not detected in unaffected controls.
CONCLUSION: Targeted exome sequencing is a rapid, high-throughput and cost-efficient method for screening known genes and could be applied to the routine gene diagnosis of congenital cataract.
METHODS: A total of 371 known genes related to inherited eye diseases of the proband was selected and captured, followed by high-throughput sequencing. The sequencing data were analyzed by established bioinformatics pipeline. Validation was performed by Sanger sequencing.
RESULTS: A recurrent heterozygous non-synonymous mutation c.130G>A (p.V44M) in the GJA3 gene was identified in the proband. The result was confirmed by Sanger sequencing. The mutation showed co-segregation with the disease phenotype in the family but was not detected in unaffected controls.
CONCLUSION: Targeted exome sequencing is a rapid, high-throughput and cost-efficient method for screening known genes and could be applied to the routine gene diagnosis of congenital cataract.